JP2016105341A - Optical disc device and optical disc library system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disc device that can store disc information stored in a flash memory for a long period even when the storage life of the flash memory is shorter than that of the optical disc.SOLUTION: An optical disc 114 is supplied in a form of being stored in a magazine 105, and the magazine 105 has a flash memory 109 storing disc information on the optical disc mounted therein. A drive controller 111 reads the disc information from the flash memory 109 and controls a disc record reproduction part 112 that reproduces a record of data. When recording data in the optical disc 114, the disc record reproduction part 112 writes at least a part of the disc information stored in the flash memory 109 in the optical disc 114.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an optical disc apparatus and an optical disc library system suitable for storing data for a long period of time.

  Patent Document 1 describes that an IC memory is mounted on a magazine containing a plurality of optical disk cartridges, and information to be written to the IC memory includes a magazine identification number, a title, a date of use, the number of insertions, and the like. ing. The information recorded in the IC memory is used to identify the optical disk and determine the durable life of the disk.

  Patent Document 2 describes that a magnetic tape is used as a recording medium, a tape cassette is provided with a memory, and manufacturing information and serial number information for each tape cassette are stored in the memory. Further, it is described that when data is recorded on the magnetic tape, identification information such as a serial number of the cassette stored in the memory is also recorded together with the recording data so that the magnetic tape and the memory have common information.

JP-A-9-212984 JP 2008-300031 A

  Among optical discs, a holographic disc is a write-once medium suitable for long-term storage of a large amount of data. In order to refer to information unique to the disc (for example, disc ID, manufacturer information, etc.) as control information when data is recorded on and reproduced from the holographic disc, this disc information must be stored in advance on the optical disc. However, in order to do so, it is necessary for the disk manufacturer to pre-write the disk information to the disk in advance, and it is necessary to provide a guard band to prevent overwriting when recording user data. There was a problem.

  Large-capacity holographic discs are expected to be supplied in the form of a plurality of optical discs stored in a magazine. Another recording medium such as a flash memory is installed in the magazine, and the disc information is stored in this magazine. It can be considered. Here, the holographic disk is a medium capable of storing data for a long time, and is expected to be stored for several decades after data recording.

  On the other hand, the lifetime of flash memory is shorter than that of a holographic disk, and information stored during a storage period of several decades may be damaged or lost. That is, when the magazine is stored for a long period of time, the information in the flash memory is damaged before the data on the optical disk. Thus, if there is a mismatch in the storage period (storage life) of the optical disk and the flash memory, the characteristics of the long life inherent in the disk cannot be utilized. Therefore, it is necessary to have a configuration that does not hinder the recording / reproducing operation of the optical disk even if the information in the flash memory is damaged.

  Patent Document 1 describes that an IC memory is mounted and magazine information and the like are written, but the storage life of the IC memory itself is not taken into consideration.

  Patent Document 2 describes that when data is recorded on a magnetic tape, information on a cassette stored in a memory is also recorded. However, in this case as well, the storage life of the memory is not considered.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an optical disc apparatus and an optical disc library system that can save disc information stored in a flash memory for a long period of time in consideration of a mismatch in the storage life of the optical disc and the flash memory.

  The present invention relates to an optical disc apparatus that records and reproduces data on an optical disc. The optical disc is supplied in a form stored in a magazine. The magazine is equipped with a memory for storing disc information related to the optical disc, and the memory is stored more than the optical disc. It has a short life, and is stored in a memory, a disk recording / reproducing unit that records and reproduces data to / from the optical disc, a disk loading / ejecting unit that loads and ejects the optical disk between the magazine and the disk recording / reproducing unit And a drive controller for controlling the disc recording / reproducing unit and the disc loading / ejecting unit based on the disc information, and the disc recording / reproducing unit is stored in the memory when recording data on the optical disc. Disk information at least Part was configured to write to the optical disc.

  According to the present invention, disk information can be stored for a long period of time regardless of the lifetime of the flash memory. Therefore, no trouble occurs in the recording / reproducing operation of the optical disk, and a highly reliable system can be constructed. Further, since it is not necessary to record disc information on the optical disc in advance, the problem of pre-writing and capacity reduction do not occur.

The figure which shows the example of 1 structure of the optical disk library system which concerns on this invention. The figure which shows an example of an internal structure of a disk drive (optical disk apparatus). The figure which shows the external appearance of a disk magazine. The figure which shows the external appearance of a disk magazine. The figure which shows the external appearance of a disk magazine. The figure which shows the state which takes out the disk from a disk magazine. The figure which shows the state which takes out the disk from a disk magazine. The figure which shows the example of the disk information stored in flash memory. The image figure of the recording area when writing disc information on an optical disc. The image figure of the recording area when writing disc information on an optical disc. The flowchart when a disk drive records data. The flowchart when a disk drive records data. The flowchart when a disk drive reproduces | regenerates data. The flowchart when a disk drive reproduces | regenerates data. The flowchart at the time of replacing | exchanging flash memory.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention relates to an optical disc apparatus and an optical disc library system for recording or reproducing data on an optical disc stored in a disc magazine, information on the optical disc and the disc magazine being stored in a flash memory mounted on the disc magazine, and data recording. It was set as the structure which writes also in an optical disk at the timing of. The optical disk is particularly suitable when a holographic disk having a large capacity and a long life is used.

  FIG. 1 is a diagram showing a configuration example of an optical disc library system according to the present invention. In the optical disc library system, the disc library device 108 is connected to the server 102, and the server 102 is connected to the network 101.

  The disk library device 108 includes a magazine storage 104 and a plurality of disk drives (optical disk devices) 107. The magazine storage 104 stores a plurality of disk magazines 105 (hereinafter also simply referred to as magazines). The magazine transport unit 106 transports the magazine 105 between the magazine storage 104 and the disk drive 107.

  When receiving a data recording / playback command from the host server 102, the library controller 103 instructs the magazine transport device 106 to take out the designated magazine 105 from the magazine storage 104 and transport it to the disk drive 107. Further, the designated disk (first recording medium) stored in the magazine 105 is selected with respect to the disk drive 107, and data recording or reproduction is instructed.

  FIG. 2 is a diagram illustrating an example of the internal configuration of the disk drive (optical disk device) 107. A disk magazine 105 transported from the magazine storage 104 by the magazine transport unit 106 is mounted on the disk drive 107. The disk loading / ejecting unit 113 loads a predetermined optical disk 114 (hereinafter also simply referred to as a disk) in the conveyed magazine 105 onto the disk recording / reproducing unit 112 and ejects it from the disk recording / reproducing unit 112. The disc recording / reproducing unit 112 records / reproduces data with respect to the disc 114. The operations of the disc recording / reproducing unit 112 and the disc loading / ejecting unit 113 are controlled by the drive controller 111.

  FIG. 2 shows a state in which the magazine 105 is loaded in the disk drive 107 and the disk 114 is loaded. The magazine 105 accommodates a disk 114 as a first recording medium and a flash memory 109 as a second recording medium. The flash memory 109 stores disk information to be described later. The disk drive 107 is provided with a memory connector 110 that is connected to the flash memory 109. The drive controller 111 reads and writes disk information from and to the flash memory 109 via the memory connector 110.

  When receiving an instruction from the library controller 103, the drive controller 111 reads disk information from the flash memory 109 and confirms that the designated magazine and disk are loaded. After confirmation, the disc loading / ejecting unit 113 loads a predetermined disc 114 onto the disc recording / reproducing unit 112. Then, the disk recording / reproducing unit 112 is caused to perform data recording or reproducing operation on the disk 114. When data is recorded on the disk 114, the disk information read from the flash memory 109 is also written to the disk 114, as will be described later.

3A to 3C are views showing the external appearance of the disk magazine 105. FIG.
When the first recording medium for recording data is a holographic disk, it is expected to be supplied in a form housed in the magazine 105, and the magazine 105 has a flash memory 109 (second recording medium shown in FIG. 2). Equipped with). Here, the second recording medium (flash memory) has a shorter recording data storage life than the first recording medium (holographic disk). The flash memory 109 stores information on each disk in the magazine 105 and information on the magazine 105. The type of the second recording medium is not limited to the flash memory, but may be a non-contact IC tag, printed two-dimensional data (bar code, QR code (registered trademark)), etc., both of which are data from the first recording medium. Has a short shelf life.

  FIG. 3A is a diagram showing the disk magazine 105 and the magazine receiving plate 117 in the disk drive 107 in which the disk magazine 105 is mounted. The magazine 105 has a plurality of disc trays 116 for storing a plurality of discs. A magazine receiving plate 117 that is a receiving member of the magazine 105 has a memory connector 110 that is electrically connected to the magazine 105.

  FIG. 3B is an external view of the disk magazine 105, and FIG. 3A is viewed from the back side. The magazine 105 incorporates a flash memory 109 (FIG. 2), and a terminal 118 of the flash memory 109 is disposed on the back surface of the magazine 105.

  FIG. 3C is a diagram showing a state where the disk magazine 105 is mounted on the magazine receiving surface 117. In this state, the flash memory terminal 118 of the magazine 105 is connected to the memory connector 110 of the magazine receiving plate 117. As a result, the disk drive 107 reads and writes disk information and the like to the flash memory 109 in the magazine 105.

4A and 4B are diagrams showing a state in which the disk 114 is removed from the disk magazine 105. FIG.
FIG. 4A shows a state where one disk tray 116 of the magazine 105 is opened. The disk load / eject unit 113 pulls out a disk tray 116 in which a predetermined disk 114 is stored from the magazine 105.

  FIG. 4B shows a state where the disk 114 is removed from the magazine 105. The disc load / eject unit 113 takes out the disc 114 from the disc tray 116 and loads it onto the disc recording / reproducing unit 112. The disc recording / reproducing unit 112 records / reproduces data with respect to the loaded disc.

  FIG. 5 is a diagram showing an example of disk information stored in the flash memory 109. The information to be stored includes the disk manufacturing information (a) and the disk management information (b). These are hereinafter collectively referred to as “disk information”.

  The disk manufacture information (Manufacture Information) in (a) is provided and stored by the disk manufacturer, and is used for reproduction only and is fixed. Items include magazine ID, disk type, disk capacity, manufacturer, manufacturing place, date of manufacture, and the like.

  The disc management information (Management Information) in (b) is managed by the disc library system, and is information used when the disc drive 107 records / reproduces data. Items include distinction between recorded / unrecorded status, recording drive name, recording date, user data, and the like. The disk management information is updated every time data is recorded, and is stored by the disk drive 107.

  The flash memory 109 may store only the disk manufacturing information (a), or may store both the disk manufacturing information (a) and the disk management information (b). That's fine. As will be described later, the disc information stored in the flash memory 109 is also recorded (copied) on the disc 114. Information to be written to the disk 114 at that time may be all information stored in the flash memory 109 or a part of the information.

  6A and 6B are image diagrams of recording areas when writing disc information to the optical disc 114. FIG. A disc information recording area is indicated by reference numeral 115.

  FIG. 6A shows a mode (recording mode A) in which the disc information is written to only one disc in the disc magazine 105. This mode is suitable when the disc information to be written is read-only information such as disc manufacturing information (FIG. 5A). That is, the data is written in the recording area 115a of one disk 114a among the plurality of disks 114a to 114e stored in the magazine 105. This disk 114a is referred to as a “specific disk”. When reading the disc information from the disc, reading is performed from the recording area 115a of the specific disc 114a.

  In the recording mode A, the library controller 103 may store which disk is the specific disk. However, if the disk information cannot be read from the flash memory 109, the ID of the magazine 105 is not known in advance, and the library controller 103 may not be able to determine it. Therefore, there is a method in which the specific disk is determined as a disk stored at a predetermined position (for example, the uppermost position) in the magazine 105. According to this method, even when the disk information cannot be read from the flash memory 109, the specific disk can be identified. In the following description, it is assumed that the library controller 103 stores which disk is the specific disk.

  FIG. 6B shows a mode (recording mode B) in which disc information is written to all the discs in the disc magazine 105. In this mode, the disc information to be written is not only read-only information such as disc manufacturing information (FIG. 5A), but also contents such as disc management information (FIG. 5B) are updated and recorded / recorded. Suitable when information to be reproduced is included. Specifically, when the first data is recorded on the disk 114a, the disk information is written in the area 115a of the disk 114a accordingly. When the next data is recorded on the disk 114b, the disk information is written in the area 115b of the disk 114b. The disc manufacturing information is fixed information, but the disc management information is updated every time data is recorded. In this way, disk information is written in the recording areas 115a to 115e of the disks 114a to 114e stored in the magazine 105. When data is recorded in the order of the disks 114a to 114e in FIG. 6B, the disk 114e is the disk on which the data has been recorded last, and this disk 114e is referred to as the “final disk”. The latest disk information is written on the final disk 114e.

  In recording mode B, read-only information such as disc manufacturing information can be read from any disc. On the other hand, information for recording / reproduction updated every time data recording such as disk management information is read from the area 115e of the last disk 114e in which the latest information is written.

  In the case of the recording mode B, as to which disk is the last disk, the recording date information written in the disk information area may be read to find out which disk was written last. Alternatively, there is a method in which the use order of a plurality of discs in the magazine 105 is determined in advance (for example, used from the top to the bottom), and recording / unrecording of each disc is confirmed in this order. According to this method, even when the recording date information cannot be read, the last disc can be identified. In the following description, it is assumed that the last disk is stored in the library controller 103.

  As a modification of the recording mode A in FIG. 6A, reproduction-only information may be written on all the disks as shown in FIG. 6B. In this case, reproduction-only information can be read from any disk.

  Hereinafter, disk information processing in data recording and data reproduction will be described with reference to flowcharts. Each process will be described separately for the above-described disc information recording modes A and B (FIGS. 6A and 6B).

7A and 7B are flowcharts when the disk drive records data.
FIG. 7A shows a recording sequence in the recording mode A (FIG. 6A), in which the read-only disk information stored in the flash memory 109 is written to only one disk in the magazine 105. Hereinafter, it demonstrates in order of a step.

In S <b> 201, a predetermined magazine 105 is taken out from the magazine storage 104 by the magazine transport unit 106 and loaded into a predetermined disk drive 107.
In S202, read-only disc information is read from the flash memory 109 built in the magazine 105 by the drive controller 111. This information is magazine or disk manufacturing information (FIG. 5A), and the drive controller 111 refers to this information to determine whether recording is possible, and sets recording conditions.

  In S203, it is determined whether or not the information has been successfully read from the flash memory 109. When reading is successful, the process proceeds to S204, and when reading is unsuccessful, the recording sequence for the magazine is terminated. The cause of the read failure may be a failure of the flash memory 109 (information corruption, etc.).

In S204, the disk loading / ejecting unit 113 loads the recording target disk (114x) in the magazine 105 onto the disk recording / reproducing unit 112.
In S205, based on the read information from the flash memory 109 in S202, the disk recording / playback unit 112 records data on the disk 114x.

  In S206, it is determined whether or not there is a specific disk (disk 114a in FIG. 6A) in which disk information has already been written in the magazine 105. This determination can be made, for example, when the drive controller 111 makes an inquiry to the library controller 103. If it exists, the recording sequence is terminated. If not, the process proceeds to S207.

  In S207, the disc recording / reproducing unit 112 writes the disc information read from the flash memory 109 by the drive controller 111 to the specific area 115x of the disc 114x. As a result, the disk 114x becomes a specific disk (disk 114a in FIG. 6A) on which disk information is written. Then, the drive controller 111 reports to the library controller 103 that the disk information has been written to the disk 114x, and the library controller 103 sets the disk 114x as the specific disk 114a.

  Through the above steps, the reproduction-only disc information stored in the flash memory 109 is recorded (copied) in the specific area 115a of the specific disc 114a. Since the read-only information is not updated, the write operation in S207 in the recording sequence is basically performed only once.

  As a modification of FIG. 7A, the reproduction-only disc information stored in the flash memory 109 may be written to all the discs in the magazine 105. In that case, the determination process of S206 is skipped, and the process proceeds to S207 to write the disk information to the disk 114x. At that time, if the disc information has already been written on the disc 114x, it is of course unnecessary to record it.

  FIG. 7B shows a recording sequence in the case of recording mode B (FIG. 6B), in which disk information (recording / reproducing and reproducing only) stored in the flash memory 109 is written to all the disks in the magazine 105.

In step S <b> 211, the magazine transport unit 106 takes out a predetermined magazine 105 from the magazine storage 104 and loads it into a predetermined disk drive 107.
In S212, the disk information is read from the flash memory 109 built in the magazine 105 by the drive controller 111. This information includes disc management information (FIG. 5B) in addition to the disc manufacturing information (FIG. 5A), and the drive controller 111 refers to this information to determine whether or not recording is possible. Set up.

  In S213, it is determined whether or not the information has been successfully read from the flash memory 109. When reading is successful, the process proceeds to S214, and when reading is unsuccessful, the recording sequence for the magazine is terminated.

In S214, the disk loading / ejecting unit 113 loads the disk to be recorded (114x) in the magazine 105 onto the disk recording / reproducing unit 112.
In S215, the library controller 103 updates the disk management information associated therewith when recording data on the disk 114x. That is, information such as the recorded / unrecorded state, the recording drive, and the recording date and time shown in FIG.

In S <b> 216, the drive controller 111 writes the disk management information updated by the library controller 103 in the flash memory 109.
In S217, based on the read information from the flash memory 109 in S212, the disk recording / playback unit 112 records data on the disk 114x.

  In S218, the disc recording / reproducing unit 112 writes the disc management information updated by the library controller 103 to the specific area 115x of the disc 114x. The information written to the disk 114x at this time includes manufacturing information (FIG. 5A) of the disk whose contents are fixed.

  Through the above steps, the disk information updated by the library controller 103 is written in both the flash memory 109 and the disk 114x. This recording sequence is performed every time data is recorded, that is, every time the disc information is updated, so that the disc information is written on all the discs. Then, the disc information including the latest disc management information is written on the last disc on which data is recorded last. Further, the library controller 103 stores which disk is the last disk on which data is recorded last, that is, the disk on which the latest disk information is written.

8A and 8B are flowcharts when the disk drive reproduces data.
FIG. 8A is a reproduction sequence in the recording mode A (FIG. 6A), and uses reproduction-only disc information written on one specific disc as a result of the recording process of FIG. 7A. Hereinafter, it demonstrates in order of a step.

In S <b> 301, a predetermined magazine 105 is taken out from the magazine storage 104 by the magazine transport unit 106 and loaded into a predetermined disk drive 107.
In S302, read-only disk information (FIG. 5A) is read from the flash memory 109 built in the magazine 105 by the drive controller 111. The drive controller 111 refers to this information to determine whether or not playback is possible, and sets playback conditions and the like.

  In S303, it is determined whether or not the information has been successfully read from the flash memory 109. When reading is successful, the process proceeds to S307, and when reading is unsuccessful, the process proceeds to S304. The cause of the read failure may be a failure of the flash memory 109 (information corruption, etc.).

  In S304, the disc loading / ejecting unit 113 takes out the specific disc 114a on which the disc information has been recorded from the magazine 105, and loads it onto the disc recording / reproducing unit 112. Here, disk information to be stored in the flash memory 109 by the processing of FIG. 7A is written in the specific disk 114a. Which disk is the specific disk is stored in the library controller 103 and may be inquired about.

In S305, the disc information is read from the area 115a of the specific disc 114a. The drive controller 111 refers to this information to determine whether or not playback is possible, and sets playback conditions and the like.
In S <b> 306, the disc loading / ejecting unit 113 ejects the specific disc 114 a and returns it to the magazine 105.

In S 307, the disc loading / ejecting unit 113 takes out the reproduction target disc 114 x from the magazine 105 and loads it onto the disc recording / reproducing unit 112.
In S308, the disk recording / playback unit 112 plays back data from the disk 114x based on the read information from the flash memory 109 in S302 or the read information from the specific disk 114a in S305.

  According to the above steps, even if the flash memory 109 has failed for some reason and the stored disk information cannot be read, the disk information can be read from the specific disk 114a. Playback operation can be performed normally.

  As a modification of FIG. 8A, there is a case where read-only disc information is written on all the discs in the magazine 105. In that case, the loading and ejecting process of the specific disk in S304 and S306 is not required. The disk information reading step in S305 may be read from the disk 114x after the reproduction target disk 114x is loaded in S307. According to this, replacement with a specific disk is unnecessary, and reproduction processing can be performed quickly.

  FIG. 8B shows a playback sequence in the recording mode B (FIG. 6B). One of the disc information (for recording / playback and playback only) written on all the discs as a result of the recording process of FIG. 7B is selected. And use it.

In step S <b> 311, the magazine transport unit 106 takes out the predetermined magazine 105 from the magazine storage 104 and loads it into the predetermined disk drive 107.
In step S312, the drive controller 111 reads disc information for recording / reproduction and reproduction only (FIGS. 5A and 5B) from the flash memory 109 built in the magazine 105. The drive controller 111 refers to this information to determine whether or not playback is possible, and sets playback conditions and the like.

  In S313, it is determined whether or not the information has been successfully read from the flash memory 109. When reading is successful, the process proceeds to S317, and when reading is unsuccessful, the process proceeds to S314.

  In S <b> 314, the disc loading / ejecting unit 113 takes out the last disc 114 e into which the disc information was last written from the magazine 105 and loads it onto the disc recording / reproducing unit 112. Here, the disk information to be stored in the flash memory 109 is written in the final disk 114e by the process of FIG. 7B. Which disk is the last disk is stored in the library controller 103, and it may be inquired about this.

In S315, the disc information is read from the area 115e of the final disc 114e. The drive controller 111 refers to this information to determine whether or not playback is possible, and sets playback conditions and the like.
In S 316, the last disk 114 e is ejected by the disk loading / ejecting unit 113 and returned to the magazine 105.

In S317, the disc loading / ejecting unit 113 takes out the reproduction target disc 114x from the magazine 105 and loads it onto the disc recording / reproducing unit 112.
In S318, based on the read information from the flash memory 109 in S312 or the read information from the last disk 114e in S315, the disk recording / reproducing unit 112 reproduces data from the disk 114x.

  According to the above process, even when the flash memory 109 has failed for some reason and the stored disk information cannot be read, the disk information can be read from the final disk 114e. Playback operation can be performed normally.

  FIG. 9 is a flowchart when the magazine flash memory is replaced (maintenance). If the disc information cannot be read from the flash memory in the above-described recording sequence or playback sequence, a failure of the flash memory is considered. In such a case, if the flash memory of the magazine is replaced with a new one and the disk information is newly written, the flash memory can be returned to the original normal storage state. Here, the case of the recording mode A (FIG. 6A) in which the read-only disc information stored in the flash memory is written only on the specific disc is shown.

In S401, the failed flash memory 109 mounted on the magazine 105 is replaced with a new flash memory.
In S <b> 402, the magazine 105 having the exchanged flash memory 109 is loaded into the disk drive 107 by the magazine transport unit 106.

  In S 403, the disc loading / ejecting unit 113 takes out the specific disc 114 a on which disc information has been recorded from the magazine 105 and loads it onto the disc recording / reproducing unit 112. Here, disk information to be stored in the flash memory 109 by the processing of FIG. 7A is written in the specific disk 114a. Which disk is the specific disk is stored in the library controller 103 and may be inquired about.

In S404, the disc recording / reproducing unit 112 reads disc information from the area 115a of the specific disc 114a.
In S <b> 405, the drive controller 111 writes the disk information read from the specific disk 114 a to the replaced flash memory 109 mounted in the magazine 105. Thereby, the flash memory 109 of the magazine 105 can be returned to a normal state.

  In the recording mode B (FIG. 6B) in which the recording / reproducing disc information stored in the flash memory 109 is written on all the discs, the disc information is written last from the magazine 105 in S403. The final disc 114e is taken out and loaded onto the disc recording / reproducing unit 112. In S404, disk information is read from the area 115e of the final disk 114e, and in S405, the read disk information may be written into the flash memory 109.

  According to the above maintenance process, the replaced flash memory 109 mounted on the magazine 105 is in a state in which disk information that should be stored is stored. Therefore, in the subsequent data recording / reproducing process, the process can be normally executed using the information read from the flash memory 109.

  In the recording sequence (FIGS. 7A and 7B), playback sequence (FIGS. 8A and 8B), and maintenance sequence (FIG. 9), it is assumed that the library controller stores which disk is the specific disk or the last disk. As described above, if a method of determining a specific disk in advance or a method of determining the use order of the disks is employed, the present invention is not limited to the above-described processing steps.

  According to the present invention, the life of a flash memory is shorter than that of an optical disk, and even if the stored disk information is damaged for any reason, the disk information can be stored on the optical disk for a long period of time. Therefore, it is possible to construct a highly reliable system.

  In the above embodiment, the case where an optical disk is used as the first recording medium for recording data has been described. However, it goes without saying that the present invention can be similarly applied to a system using another recording medium, for example, a magnetic tape. Yes. Further, the case where the flash memory is used as the second recording medium for storing information related to the first recording medium has been described. However, in other recording media such as a system using non-contact IC tags and printed two-dimensional data. Needless to say, the present invention can be similarly applied.

101 ... Network,
102 ... Server,
103 ... Library controller,
104 ... Magazine storage,
105, 105a ... Disc magazine (magazine),
106 ... Magazine transfer device,
107: Disc drive (optical disc apparatus),
108: Disc library device,
109 ... flash memory,
110: Memory connector,
111 ... Drive controller,
112: Disc recording / playback unit,
113: Disc loading / ejecting section,
114, 114a to 114e ... optical disc,
115, 115a to 115e ... recording area,
116: Disc tray,
117 ... Magazine backing plate,
118: Flash memory terminal.

Claims (12)

In an optical disc apparatus for recording and reproducing data on an optical disc,
The optical disc is supplied in a form stored in a magazine, and the magazine is equipped with a memory for storing disc information relating to the optical disc, and the memory has a shorter storage life than the optical disc,
A disc recording / reproducing unit for recording / reproducing data on the optical disc;
A disc loading / ejecting unit for loading and ejecting the optical disc between the magazine and the disc recording / reproducing unit;
A disk controller that reads disk information stored in the memory and controls the disk recording / reproducing unit and the disk load / eject unit based on the disk information;
The optical disc apparatus, wherein the disc recording / reproducing unit writes at least a part of disc information stored in the memory when recording data on the optical disc. The optical disc apparatus according to claim 1,
When the disk recording / playback unit plays back data from the optical disk, if the disk information stored in the memory fails to be read, the disk information written on the optical disk is read and used. Optical disk device to perform. The optical disc apparatus according to claim 1 or 2,
The optical disc apparatus, wherein the disc information is information relating to manufacturing conditions of the optical disc and the magazine. The optical disk apparatus according to claim 3,
The optical disc apparatus, wherein the disc information further includes management information relating to recording and reproduction of data with respect to the optical disc. The optical disk apparatus according to claim 3,
An optical disc apparatus, wherein when a plurality of optical discs are stored in the magazine, the disc recording / reproducing unit writes the disc information on only one optical disc. The optical disk apparatus according to claim 4, wherein
When a plurality of the optical discs are stored in the magazine, the disc recording / reproducing unit writes the disc information to all the optical discs, and when reading the disc information from the optical disc, the disc information is read from the last written optical disc. An optical disc apparatus characterized by being used. The optical disc apparatus according to claim 1,
When the disk recording / reproducing unit records data on the optical disk, the data recording to the optical disk is not performed if reading of disk information from the memory fails. The optical disc apparatus according to claim 1,
The optical disk apparatus, wherein the drive controller writes the disk information read from the optical disk to the replaced memory mounted in the magazine when reading of the disk information from the memory fails. The optical disc apparatus according to claim 1,
An optical disc apparatus, wherein the optical disc is a holographic disc and the memory is a flash memory. In an optical disc library system that records and saves data on a plurality of optical discs stored in a magazine,
Including a plurality of optical disk devices according to any one of claims 1 to 9,
A magazine storage for storing a plurality of the magazines;
A magazine transport section for transporting the magazine between the magazine storage and the optical disc device;
A library controller that receives a command from a server, controls the magazine transport unit and the optical disc apparatus, and records or reproduces data on a designated optical disc stored in a designated magazine. Optical disc library system. The optical disk library system according to claim 10, wherein
The library controller stores an optical disk in which the disk information stored in a memory mounted in the magazine is written in the optical disk stored in the magazine. Library system. In a recording / reproducing apparatus for recording and reproducing data on a first recording medium,
The first recording medium is supplied in a form housed in a magazine, and a second recording medium for storing medium information relating to the first recording medium is mounted in the magazine, and the second recording medium is The storage life is shorter than that of the first recording medium,
A recording / reproducing unit for recording / reproducing data on the first recording medium;
A load / eject unit for loading and ejecting the first recording medium between the magazine and the recording / reproducing unit;
A drive controller that reads medium information of the first recording medium stored in the second recording medium, and controls the recording / reproducing unit and the load / eject unit based on the medium information;
When the recording / reproducing unit records data on the first recording medium, at least a part of the medium information of the first recording medium stored in the second recording medium is stored in the first recording medium. A recording / reproducing apparatus for writing.

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